#include<stdio.h>
int main()
{
	char c1,c2;
    do
	{
		c1=getchar();
		if(c1=='\n')
		    break;
		if(c1=='y'||c1=='z')
		{
			c2=c1-24;
		}
		else
		    c2=c1+2;
		putchar(c2);
	}while(c1!='\n');
	return 0;
}

